Press Fitting Indicator Elastic Retention for Quiet Crimping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing press fittings with indicators often result in noisy destruction during use, making the process less controlled and potentially leading to malfunctions, and indicators are not reusable or easily removable.
Innovation Solution
A press fitting design featuring an elastically loosenable form fit between the indicator and other press fitting parts, allowing for controlled removal and potential reinstallation, reducing noise and improving usability while enabling indicator reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the indicator is attached to the press fitting using a form fit connection, then the indicator provides reliable visual indication of crimping, but the indicator may tear, pinch, or break during the pressing process creating noise and potential malfunctions
Solution Approach 1:
The indicator connection transitions from a static rigid form fit to a dynamic spring-based connection. The spring element allows controlled deformation during pressing, absorbing mechanical stresses that would otherwise cause the indicator to tear or break, while maintaining reliable attachment during normal use.
Solution Approach 2:
The connection mechanism changes from rigid form fit to elastic spring-based connection. This parameter change in connection stiffness allows the indicator to withstand pressing forces without deformation or damage, eliminating the harmful tearing and pinching effects while maintaining secure attachment.
2Stability of the object's composition
If the indicator is securely attached to the press fitting, then the indicator remains in place during handling, but the indicator cannot be easily removed for reuse or collection
Solution Approach 1:
The spring-based connection provides dynamic characteristics that allow the indicator to be securely held during normal handling while enabling easy removal when needed. The elastic nature of the spring allows controlled detachment without damage to the indicator.
Solution Approach 2:
The spring connection automatically secures the indicator in place during handling through its elastic retention force, while allowing simple manual removal by overcoming the spring force. The system serves both secure attachment and easy removal functions through its inherent elastic properties.
3Reliability
If a rigid form fit connection is used for the indicator, then the indicator is firmly held during pressing, but the indicator shows signs of damage after crimping reducing user confidence
Solution Approach 1:
The spring-based connection dynamically absorbs pressing forces through elastic deformation, preventing the indicator from experiencing the rigid stress concentrations that cause tearing, pinching, or breaking. The indicator remains visually intact after crimping, maintaining user confidence.
Solution Approach 2:
The connection stiffness parameter is changed from rigid to elastic. This allows the indicator to withstand pressing forces without permanent deformation or damage, eliminating visual damage signs while maintaining reliable retention during the pressing process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a quiet, controlled pressing process, reduces the likelihood of malfunctions, and allows indicators to maintain their shape for easier collection or reuse, enhancing user convenience and efficiency.
Implementation Method 1
a fitting part is plastically deformed using a special tool
Implementation Method 2
which is spring-loaded in the direction of movement
Data Source
Figure 1~3b
Figure 4a~7b
Figure 8a~8b
AI summary
The invention relates to a novel press fitting with press tab (1, 2) and a clippable indicator (5).